Supporting-frame for motion-picture machines.



N. POWER.

SUPPORTING FRAME FOR MOTION PICTURE IMAQHINES.

APPLICATIUN FlLED JULY 4| 1914.

2 SHEETSSHEET 1.

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N. POWER.

' SUPPORTING FRAME FOR MOTION PICTURE MACHINES.

APPLICATION HLED JULY [4. l9l4. 1,273,921. Patented July 30,1918.

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NICHOLA'S POWER, OF BROOKLYN, NEW YORK, ASSIGNOR TO NICHOLAS POWER COM-PANY, OF NEW YORK, N. Y., ACORPORATION OF DELAWARE.

Specification of Letters Patent.

Patented July 30, 1918.

Application filed July 14, 1914. Serial No. 850,871.

To all wham it may concern:

Be it known that I, NICHOLAS POWER, a citizen of the United States,residing in Brooklyn, county of Kings, and State of New' York, (whosepost-oifice address is #388 Jefferson avenue,) have invented new anduseful Improvements in Supporting- Frames for Motion-Picture Machines,of which the following is a specification.

This invention relates to motion picture machines and sup orting framestherefor,

' and has for its ob ect to provide a moving picture machine havinga'frame. by means of which the direction of the projection may beadjusted to any desired angle relative to the level of the floor orsurface on which the machine is set.

A further object of the invention is to provide a frame for movingpicture machines of the class described in which the mechanism is drivenby a suitable electric, or other, motor attached to the frameconstructed so that the direction of the projection may be adjusted toany desired angle without disturbing the level of the driving motor.

With the above objects in view my invention consists of the constructionhereinafter described and illustrated in the acompanyin drawingswherein,

Tigure 1 is a side elevation of my improved machine, and

Fig.2 a vertical sectional view through the supporting frame.

Referring to the drawings, and particularly Fig. 1, 1 represents thebase of the frame which is rigidly supported at each corner on asuitable leg 2. The legs 2 are preferably madev extensible by means ofset screws 3 in their sockets, whereby the relative lengths of the legsmay be varied to maintain the base 1 level on a sloping or unevensupport. Integral with the. base 1 is an upwardly projecting verticalplate 4 of circular shape and having at the center of the circle abearing or journal box 5. The upper artof the frame 6 consists of ashelf-1i e part 7 forming a base for the machine head 8 and having adownwardly projecting vertical web 9, a portion of Wl'llOh is circularin design and lies parallel to the part. 4 of the base. The part 9 issupported on thebase by means of a'hollow spindle 10 which works in thebearing 5 and by clamping bolts 11 working in arcuate slots near theperiphery of the part 4. Also attached to the upper part 6 of the frameare the longitudinal rods 12 which support the lamp house 13whichincloses the arc light, or other light used to produce theprojection. The rods 12 are supported at their free ends by the diagonalbrace 14 mounted on the lower corner of the web 9. It will be understoodthat the lamp house 13 is the rod while on the rear rod 15 lying underthe center of the lamp house, a roller.l6 is provided to carry theweight of the lamp house and make the adjustment easier.

Also supported on the upper part of the frame beneath the shelf 7 is themagazine 24 which incloses the receiving reel 25 on which the film iswound after its passage through the projecting machine. This reel isdriven by a shaft 26 which projects through the bearing in the tubularspindle 10 and carries on its outer end a suitable driving pulley beltedto a driven shaft 27 of the projecting mechanism, as diagrammaticallyindicated in Fig. 1.

The' driving motor 17 is shown as a small electric motor and it isrigidly attached to the underside of the base 1 as is also the variablespeed gear 18 through which the mechanism is driven by means cf a belt19 extending from the driven part of the speed gear to the drivin pulley20 of the projecting mechanism. he belt 19 does not pass directly fromthe gear 18 to the pulley 20 but passes over two idler rollers 21supthen loosened and the upper part of the frame adjusted in the bearing5 as a center to give the desired inclination to the machine asdetermined by the elevation of the machine above the centerof the screenon which the pictures are to be projected. After adjustment the bolts 11are set to clamp the frame parts together in a single rigidconstruction. The angular adjustment of the frame obviously varies thedis tance of the pulley 20 on the driving gear thereby varying thetension of the drivin belt. This difi'erence, however, may be ta en careof by adjusting the bracket 22 on the rod 12. Adjustment of the bracket22 also provides for varying the path of the belt to compensate for anystretching or shrinkage of the belt. As the frame is adjusted around thereel shaft 26 as a center it is obvious that the driving belt for thereel will not be afi'ected.

For convenience of the operator in adjusting the speed gear 18 anoperating handle 28 is provided: pivotally mounted on the front face ofthe upper part 6 of the frame and is provided with a locking pawlengaging the ratchet segment attached to the frame. The handle 28 isconnected to the operating bell-crank 29 of the gear by means of a link30 formed of telescoping adjustable parts whereby the link may beshortened or lengthened to compensate for the adjustment ofthe frame.

Having thus described my invention, what llclaim anddesire to secure byLetters Patent is:

i. In a motion picture projecting apparatus, a supporting framecomprising a stationary base portion, a driving motor mounted on thebase portion, an upper portion supporting the projecting mechanism, apivotal connection between the two parts permitting relative angularadjustment, said connections comprising a hub and bearing on said twoparts respectively, flanges on said huband bearing and clamping boltsfor clamping said flanges together to lock said parts together inadjusted relation, and a power transmitting connection between saidmotor and said mechanism.

2. In a motion picture projecting apparatus, a supporting framecomprising a stationary base portion, a driving motor mounted on thebase portion, an upper portion supporting the projecting mechanism, apivotal connection between the two parts permitting relative angularadjustment, a power transmitting connection between said motor and saidmechanism, and means for adjusting said power transmitting connection tocompensate for'the relative adjustment of said motor and said projectingmechanism.

3. In a motion picture projecting apparatus, a supporting framecomprising a stationary base portion, a driving motor mounted on thebaseportion, an upper portion supporting the projecting mechanism, a pivotalconnection between the two parts permitting relative angular adjustment,and a power transmitting connection between said motor and saidmechanism, said power transmitting connection comprising a variablespeed gear supported on said base and means for adjusting said gearsupported on said upper frame part and adjustably connected to saidgear.

4. In a motion picture apparatus, the combination of a supporting framecomprising abase, means for adjusting said base relativelyv to thesupporting surface, an upper frame part pivotally supported on saidbase, means for clamping said upper frame part in various positions ofadjustment, a projecting mechanism mounted on said upper frame part, areceiving magazine also supported thereon, and having a reel-supportingshaft at the center of adjustment of said frame part and a drivingconnection between sald projecting mechanism and said reelsupportingshaft.

5. in a motion picture apparatus, the combination of a frame or standhaving a base, means for adjustably supporting said base at difierentangular positions, an upper frame part mounted on said'base for angularmovement in a vertical plane, said upper frame part comprising anangular frame having on its upper surface a seat for the pro ectingapparatus and downwardly projecting arms to embrace and support a reelinclosing magazine, and a lateral extension from said upper frame partfor supporting the projecting lamp.

6. In a motion picture apparatus, the combination of a frame or standhaving a base, means for adjustably supporting said base at diflerentangular positions, an upper frame part mounted on said base for angularmovement in a vertical plane, said upper frame part comprising anangular frame having on its upper surface a seat for the pro ectingapparatus and downwardly proecting arms to embrace and support a reelinclosing magazine, a lateral extension from said upper framepart forsupporting the pro ecting lamp, and a driving motor supported-on saidbase having driving connectiont with the projector on said upper framepar .7. In a motion picture apparatus, the combination of a frame orstand having a base, an upper frame partmounted onsaid base for angularmovement in a vertical plane, said upper frame part comprising anangulat frame having on its upper surface a New York and State of NewYork this 29th seat lfor the projecting apparagus and. downday of June,1914. warc 1y projecting arms to em race and supv port a reel inolosingmagazine and a lateral NlCHOLAS POWER '6 extension from said upper framepart for Witnesses:

s11 porting the projecting lamp. W. B. MORTON,

igned at New York in the county of EDWARD EARL.

